The only current page I found for this device is this Chinese one, which didn't clarify anything. It looks like she's digitizing a blueprint.

A young lady operating a pedal and a mouse-like device on a table labeled "d-moc" wired to a keyboard, ticker tape, camera, and presumably a computer.

  • Digitizers similar to this were still widely used until the late 1990s for digitizing old hand drawn maps & plans: surface contours, street layouts, surface features & old underground mines. To get get the correct elevations for the digitized surface data a digital terrain model (DTM) would be created from ground surveys and the digitized data draped over the DTM. For underground mines, with several levels a little bit of guess work was involved because most of the underground openings could be be surveyed. – Fred Oct 18 at 11:46
up vote 8 down vote accepted

That is the D-Mac Cartographic Digitiser, seen here in the 1968 Design journal (Issue 234):

D-Mac Cartographic Digitiser

It seems the D-Mac Cartographic Digitiser was developed from an earlier device called the D-Mac Pencil Follower, shown here in the 1968 Design journal:

D-Mac Pencil Follower

Both devices appear to be early types of graphics tablet.

  • 1
    Looks similar. But the box on the table and the actual computer cabinet do not match. Looking through some old newspapers I get the impression that they had quite a few versions on sale. This is even stranger: box more vintage, cabinet better matching? – LangLangC Oct 17 at 22:14
  • And it was developed at the arts department? – LangLangC Oct 17 at 22:15
  • 1
    @LangLangC The picture shows the "Type CF" (which looks to have had a Winchester disk, rather than punched tape storage). D-Mac were subsequently bought by Ferranti-Cetec in the 1970s, and units produced after that had the Ferranti-Cetec brand. – sempaiscuba Oct 17 at 22:35
  • The table and pedal appear to be of the Digitiser, but the rest of the Pencil Follower, which appears to have modularized (and added support for the pedal?) the black box that was attached to its smaller table. – Cees Timmerman Oct 17 at 22:55
  • That's perfectly possible. The "control pedestal" and "electronics console" (as the article describes them) would probably have been selected for the particular application and/or budget. – sempaiscuba Oct 17 at 23:02

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